![LayerStack Tutorials - LayerStack - How to check if TCP / UDP port is open on Linux & Windows Cloud Servers LayerStack Tutorials - LayerStack - How to check if TCP / UDP port is open on Linux & Windows Cloud Servers](https://www.layerstack.com/img/docs/resources/port3.png)
LayerStack Tutorials - LayerStack - How to check if TCP / UDP port is open on Linux & Windows Cloud Servers
![How to Open/Allow incoming firewall port on Ubuntu 20.04 Focal Fossa - Linux Tutorials - Learn Linux Configuration How to Open/Allow incoming firewall port on Ubuntu 20.04 Focal Fossa - Linux Tutorials - Learn Linux Configuration](https://linuxconfig.org/wp-content/uploads/2020/02/01-how-to-open-allow-incoming-firewall-port-on-ubuntu-20-04-focal-fossa.png)
How to Open/Allow incoming firewall port on Ubuntu 20.04 Focal Fossa - Linux Tutorials - Learn Linux Configuration
![LayerStack Tutorials - LayerStack - How to check if TCP / UDP port is open on Linux & Windows Cloud Servers LayerStack Tutorials - LayerStack - How to check if TCP / UDP port is open on Linux & Windows Cloud Servers](https://www.layerstack.com/img/docs/resources/port4.png)
LayerStack Tutorials - LayerStack - How to check if TCP / UDP port is open on Linux & Windows Cloud Servers
![Comandos para comprobar si un puerto está abierto en nuestra PC/Servidor u otro remoto | Desde Linux Comandos para comprobar si un puerto está abierto en nuestra PC/Servidor u otro remoto | Desde Linux](https://blog.desdelinux.net/wp-content/uploads/2013/12/nc.jpg)
Comandos para comprobar si un puerto está abierto en nuestra PC/Servidor u otro remoto | Desde Linux
![LayerStack Tutorials - LayerStack - How to check if TCP / UDP port is open on Linux & Windows Cloud Servers LayerStack Tutorials - LayerStack - How to check if TCP / UDP port is open on Linux & Windows Cloud Servers](https://www.layerstack.com/img/docs/resources/port5.png)
LayerStack Tutorials - LayerStack - How to check if TCP / UDP port is open on Linux & Windows Cloud Servers
![How to perform port scan on Ubuntu 20.04 Focal Fossa Linux - Linux Tutorials - Learn Linux Configuration How to perform port scan on Ubuntu 20.04 Focal Fossa Linux - Linux Tutorials - Learn Linux Configuration](https://linuxconfig.org/wp-content/uploads/2020/02/02-how-to-perform-port-scan-on-ubuntu-20-04-focal-fossa-linux.png)